The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1976
Filed:
Aug. 10, 1972
Nobuyoshi Hashimoto, Yokohama, JA;
Kiyotaka Yoshimura, Mobara, JA;
Shiro Asano, Yokohama, JA;
Tadatoshi Honda, Yokohama, JA;
Ryozi Tsuchiya, Kamakura, JA;
Mitsui Toatsu Chemicals, Incorporated, Tokyo, JA;
Abstract
A process for continuously manufacturing acrylamide by hydrating acrylonitrile in the presence of a free metallic copper catalyst, characterized in that a reactor is employed, which is internally partitioned into a catalyst slurry circulating section and a catalyst precipitating section, and that raw materials and supplementary catalyst are supplied continuously into the reactor and at the same time the clear reaction liquid and a portion of the catalyst are continuously taken out of the reactor so that the properties of the catalyst are maintained constant.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile